chrome/browser/google/google_update_settings_posix.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/installer/util/google_update_settings.h"
   6
   7 #include "base/files/file_util.h"
   8 #include "base/lazy_instance.h"
   9 #include "base/path_service.h"
  10 #include "base/strings/string_util.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "base/synchronization/lock.h"
  13 #include "chrome/common/chrome_paths.h"
  14
  15 #if defined(OS_MACOSX)
  16 #include "components/crash/content/app/crashpad_mac.h"
  17 #endif
  18
  19 namespace {
  20
  21 base::LazyInstance<std::string>::Leaky g_posix_client_id =
  22     LAZY_INSTANCE_INITIALIZER;
  23 base::LazyInstance<base::Lock>::Leaky g_posix_client_id_lock =
  24     LAZY_INSTANCE_INITIALIZER;
  25
  26 // File name used in the user data dir to indicate consent.
  27 const char kConsentToSendStats[] = "Consent To Send Stats";
  28
  29 void SetConsentFilePermissionIfNeeded(const base::FilePath& consent_file) {
  30 #if defined(OS_CHROMEOS)
  31   // The consent file needs to be world readable. See http://crbug.com/383003
  32   int permissions;
  33   if (base::GetPosixFilePermissions(consent_file, &permissions) &&
  34       (permissions & base::FILE_PERMISSION_READ_BY_OTHERS) == 0) {
  35     permissions |= base::FILE_PERMISSION_READ_BY_OTHERS;
  36     base::SetPosixFilePermissions(consent_file, permissions);
  37   }
  38 #endif
  39 }
  40
  41 }  // namespace
  42
  43 // static
  44 bool GoogleUpdateSettings::GetCollectStatsConsent() {
  45   base::FilePath consent_file;
  46   PathService::Get(chrome::DIR_USER_DATA, &consent_file);
  47   consent_file = consent_file.Append(kConsentToSendStats);
  48
  49   if (!base::DirectoryExists(consent_file.DirName()))
  50     return false;
  51
  52   std::string tmp_guid;
  53   bool consented = base::ReadFileToString(consent_file, &tmp_guid);
  54   if (consented) {
  55     SetConsentFilePermissionIfNeeded(consent_file);
  56
  57     base::AutoLock lock(g_posix_client_id_lock.Get());
  58     g_posix_client_id.Get().assign(tmp_guid);
  59   }
  60   return consented;
  61 }
  62
  63 // static
  64 bool GoogleUpdateSettings::SetCollectStatsConsent(bool consented) {
  65 #if defined(OS_MACOSX)
  66   crash_reporter::SetUploadsEnabled(consented);
  67 #endif
  68
  69   base::FilePath consent_dir;
  70   PathService::Get(chrome::DIR_USER_DATA, &consent_dir);
  71   if (!base::DirectoryExists(consent_dir))
  72     return false;
  73
  74   base::AutoLock lock(g_posix_client_id_lock.Get());
  75
  76   base::FilePath consent_file = consent_dir.AppendASCII(kConsentToSendStats);
  77   if (!consented) {
  78     g_posix_client_id.Get().clear();
  79     return base::DeleteFile(consent_file, false);
  80   }
  81
  82   const std::string& client_id = g_posix_client_id.Get();
  83   if (base::PathExists(consent_file) && client_id.empty())
  84     return true;
  85
  86   int size = client_id.size();
  87   bool write_success =
  88       base::WriteFile(consent_file, client_id.c_str(), size) == size;
  89   if (write_success)
  90     SetConsentFilePermissionIfNeeded(consent_file);
  91   return write_success;
  92 }
  93
  94 // static
  95 // TODO(gab): Implement storing/loading for all ClientInfo fields on POSIX.
  96 scoped_ptr<metrics::ClientInfo> GoogleUpdateSettings::LoadMetricsClientInfo() {
  97   scoped_ptr<metrics::ClientInfo> client_info(new metrics::ClientInfo);
  98
  99   base::AutoLock lock(g_posix_client_id_lock.Get());
 100   if (g_posix_client_id.Get().empty())
 101     return scoped_ptr<metrics::ClientInfo>();
 102   client_info->client_id = g_posix_client_id.Get();
 103
 104   return client_info.Pass();
 105 }
 106
 107 // static
 108 // TODO(gab): Implement storing/loading for all ClientInfo fields on POSIX.
 109 void GoogleUpdateSettings::StoreMetricsClientInfo(
 110     const metrics::ClientInfo& client_info) {
 111   // Make sure that user has consented to send crashes.
 112   if (!GoogleUpdateSettings::GetCollectStatsConsent())
 113     return;
 114
 115   {
 116     // Since user has consented, write the metrics id to the file.
 117     base::AutoLock lock(g_posix_client_id_lock.Get());
 118     g_posix_client_id.Get() = client_info.client_id;
 119   }
 120   GoogleUpdateSettings::SetCollectStatsConsent(true);
 121 }
 122
 123 // GetLastRunTime and SetLastRunTime are not implemented for posix. Their
 124 // current return values signal failure which the caller is designed to
 125 // handle.
 126
 127 // static
 128 int GoogleUpdateSettings::GetLastRunTime() {
 129   return -1;
 130 }
 131
 132 // static
 133 bool GoogleUpdateSettings::SetLastRunTime() {
 134   return false;
 135 }